Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)	Jul. 02, 2022	Jan. 01, 2022
Accounts Receivable, Allowance For Doubtful Accounts	$ 545,073	$ 515,000
Common Stock, Par Value (in Dollars Per Share)	$ 0	$ 0
Common Stock, Shares Authorized (in Shares)	50,000,000	50,000,000
Common Stock, Shares Issued (in Shares)	9,041,489	9,029,852
Common Stock, Shares Outstanding (in Shares)	6,217,164	6,265,527
Treasury Stock, Shares (in Shares)	2,824,325	2,764,325
Voting Preferred Stock (Member)
Voting Preferred Stock, Par Value (in Dollars Per Share)	$ 0	$ 0
Voting Preferred Stock, Shares Authorized (in Shares)	1,000,000	1,000,000
Nonvoting Preferred Stock [Member]
Nonvoting Preferred Stock, Par Value (in Dollars Per Share)	$ 0	$ 0
Nonvoting Preferred Stock, Shares Authorized (in Shares)	1,000,000	1,000,000